Malliotakis has raised $427,646 so far, according to campaign finance records through Aug. 7, the most recent filing deadline. She raised about $83,214 during the most recent, monthlong filing period.

De Blasio has raised about $4.8 million, according to finance records and his campaign, including about $74,980 during the most recent filing period.

"Bill de Blasio is an incumbent Mayor with a pay-to-play approach to fundraising who has run for reelection for the past 4 years; of course he has out fundraised us," Malliotakis campaign spokesman Rob Ryan said. "As voters learn about Nicole and her common sense approach to governing, we are confident they will choose her over a mayor who has mismanaged their tax dollars, reduced their quality of life and refuses to work with Governor Cuomo to address our transit crisis."

Unlike Malliotakis, de Blasio can also get public matching funds after meeting thresholds set by the Campaign Finance Board, or CFB.

"With matching funds our campaign has raised more than $8 million, and after fully maxing out for the Primary, we have been focused on organizing," de Blasio campaign spokesman Dan Levitan said in a statement. "We've brought on 50 organizing fellows and just launched our distributed organizing platform through 50 house parties across all five boroughs that were attended by more than 500 supporters. We are confident we will have all the resources we need in the General Election campaign."

The voluntary matching funds program gives campaigns $6 for every $1 raised from city residents, up to $1,050 from every contributor. Matching funds only apply for donations of up to $175 from city residents.

Candidates for mayor need to raise $250,000 in such "matchable" contributions and $10 or more from 1,000 city residents to qualify. Malliotakis is roughly $80,000 short of the threshold.

"We have no doubt that we will raise the amount needed," Ryan said.

The Malliotakis campaign has spent $194,396. Ryan said the campaign has $261,920.34 cash on hand, though CFB estimates that number to be closer to $230,000.

De Blasio's complete filings weren't immediately available on Friday night, but his campaign had spent about $2.2 million by July 11.